The Marble Collector, by Cecelia Ahern, is about a forgotten childhood and a discovered life. The summary says: "Sometimes the smallest secret can become the biggest lie. Sabrina Boggs' life is ordinary, until the day she opens a box full of marbles. The father she thought she knew is a stranger to her. Fergus Boggs' life is uneventful: he can't remember much from one day to the next. But his childhood dances in front of his eyes as vividly as when he lived it. As Sabrina pieces together the story of her father's collection, she learns how little we know of the people close to us. We all have little secrets. We all want to be loved. But when you hide a part of yourself away, how can anyone know who you really are?" The Marble Collector is out in November 2015.